|WEPMP044||Mu2e Electrostatic Septa Volumetric Exchange of Fc-40 Dielectric in High Radiation Environments||2434|
Funding: * Operated by FRA, LLC under Contract No. DEAC02-07CH11359 and Grant Award No. LAB 18-1802 with the United States Department of Energy.
Two electrostatic septa (ESS) are being designed for the slow extraction of 8 GeV proton beam for the Mu2e experiment at Fermilab. Special attention is given to the high voltage feedthrough (HVF), which energizes the cathode creating the bending field. The FC-40 dielectric fluid, surrounding the HV cable breaks down from radiation exposure, which reduces its insulating capabilities. The new HVF design focuses on effective replacement of the exposed fluid and eliminating the stagnant areas of low exchange rate. A preliminary test using a fully transparent prototype HVF and water was conducted to understand the volumetric exchange rate of the high radiation region. Here we discuss the results of these tests and further studies using the FC-40.
|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-WEPMP044|
|About •||paper received ※ 14 May 2019 paper accepted ※ 23 May 2019 issue date ※ 21 June 2019|
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